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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Pecan Lake Subdivision Ws

Monochloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

74

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND80ND
2016ND120ND
20171.03 ppb188ND - 3.10 ppb
20180.114 ppb162ND - 0.910 ppb
2019ND160ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-121325226ND
2014-08-121325225ND
2014-08-121325226ND
2014-08-121325225ND
2015-08-261422235ND
2015-08-261422236ND
2015-08-261422236ND
2015-08-261422235ND
2015-11-301447684ND
2015-11-301447685ND
2015-11-301447685ND
2015-11-301447684ND
2016-05-301496261ND
2016-05-301496262ND
2016-05-301496262ND
2016-05-301496261ND
2016-08-181518353ND
2016-08-181518354ND
2016-08-181518354ND
2016-08-181518353ND
2016-11-161542216ND
2016-11-161542217ND
2016-11-161542217ND
2016-11-161542216ND
2017-02-01352925820153.10 ppb
2017-02-01352925820162.70 ppb
2017-02-01352925820162.70 ppb
2017-02-01352925820153.10 ppb
2017-05-0535310618018ND
2017-05-0535310618017ND
2017-05-0535310618017ND
2017-05-0535310618018ND
2017-08-0235328002018ND
2017-08-0235328002017ND
2017-08-0235328002017ND
2017-08-0235328002018ND
2017-11-02353461570012.10 ppb
2017-11-02353461570021.40 ppb
2017-11-02353461570012.10 ppb
2017-11-02353461570021.40 ppb
2017-12-0535361475001ND
2017-12-0535361475001ND
2018-02-0235372041002ND
2018-02-0235372041001ND
2018-02-0235372041001ND
2018-02-0235372041002ND
2018-05-1035391937001ND
2018-05-1035391937002ND
2018-05-1035391937001ND
2018-05-1035391937002ND
2018-08-0235408590002ND
2018-08-0235408590001ND
2018-08-0235408590001ND
2018-08-0235408590002ND
2018-11-09354301900010.910 ppb
2018-11-0935430190002ND
2018-11-09354301900010.910 ppb
2018-11-0935430190002ND
2019-02-0135445747002ND
2019-02-0135445747001ND
2019-02-0135445747001ND
2019-02-0135445747002ND
2019-05-0135465861002ND
2019-05-0135465861002ND
2019-05-0135465861001ND
2019-05-0135465861001ND
2019-08-0135487249002ND
2019-08-0135487249001ND
2019-08-0135487249001ND
2019-08-0135487249002ND
2019-11-1435512563001ND
2019-11-1435512563002ND
2019-11-1435512563001ND
2019-11-1435512563002ND